Don’t think this customization option in a complex manner. Just as I explained in the previous post, title-mentioned options are easily available for everyone through the gnome-shell extension domain. The only thing you need to do is to enable the same from their domain. Here is the link. Enable it by sliding the ON-OFF bar on the left side. Now the default status menu will be changed to look somewhat similar to one displayed above.
Note:- Depending upon the no.of users in you GNU/Linux system Switch User option may be present or not. It will be available with more than one user. Alternate method to do the same via terminal is to install the gnome-shell-extenions and then enable the required extension. Steps are as follows..